Submission #227035

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
227035	2020-04-25 22:25:51	abeker	Matching (COCI20_matching)	C++17	58 / 110	341 ms	524292 KiB

matching

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#include <bits/stdc++.h>
using namespace std;
 
typedef pair <int, int> pii;
 
const int MAXN = 1e5 + 5;
const int offset = 1 << 17;
const int MAXV = 1.05e7 + 5;
int n;
bool sol[MAXV];
bool bio[MAXV];
int comp[MAXV];
vector <int> adj[MAXV], rev[MAXV];
stack <int> order;
inline int add_variables(int vars) {
  n += vars;
  return n - vars;
}
void add_edge(int u, int v) {
  adj[u].push_back(v);
  rev[v].push_back(u);
}
void add_implication(int u1, int neg1, int u2, int neg2) {
  add_edge(2 * u1 + neg1, 2 * u2 + neg2);
  add_edge(2 * u2 + !neg2, 2 * u1 + !neg1);
}
 
 
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Compilation message (stderr)

matching.cpp: In function 'void add_clause(int, int, int)':
matching.cpp:97:8: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if (u < off[x] + tour[x].size())
      ~~^~~~~~~~~~~~~~~~~~~~~~~~~
matching.cpp: In function 'void init(int)':
matching.cpp:106:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while (off[x] < tour[x].size())
         ~~~~~~~^~~~~~~~~~~~~~~~
matching.cpp: In function 'void load()':
matching.cpp:72:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
matching.cpp:74:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", x + i, y + i);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 6 / 6
• Subtask 3: 7 / 7
• Subtask 4: 40 / 40
• Subtask 5: 0 / 52